Dental amalgam or alloy mixer



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DENTAL AMALGAM 0R ALLOY MIXER. APPLICATION FILEDv JULY Z3, 1921.

1,395,235. vPatellted Oct. 25, 1921.

@ww/LKW By UNITED STATES PATENT OFFICE.

BOHUSLAVSIML, 0F CHICAGO, ILLINOIS.

DENTAL AMALG'AM OR ALLOY MIXER.

Application led. Ju1y'23,

T 0 all whom t 'may concern.'

Be it known that l, BoHUsLAv SIML, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Dental Amalgam or AlloyMixers, of which the following is the specification. c

This invention relates to improvements in agitating or mixing devices,and particularly to that type of such devices which are intended for useby dentists in connection with the chucks of dental lathes or othersuitable rotatable shafts or spindles for thoroughly, quickly andefficiently mixing the ingredients of dental amalgam or alloy.

The principal obj ect of the invention is to furnish a mixer for theingredients of amalgam, alloy and the like which shall be extremelysimple and inexpensive in construction, attractive in appearance,strong, durable and efhcient in operation, with its parts so made andarranged that it can be easily handled and quickly applied to or removedfrom the chuck of the lathe, or other suitable rotatable member employedfor imparting motion to the parts of the device.

In the accompanying drawing which serves to illustrate an embodiment ofthe invention- Figure 1 is a face view in elevation of one side of themixer.

Fig. 2 is an edge View thereof, and

Fig. 3 is a vertical sectional View taken on line 3.3 of Fig. 1, lookingin the direction indicated by arrows and illustrating the device inoperative position on a pdirtion of the chuck of a dental lathe.

Like numerals of reference designate corresponding parts throughout thedierent views of the drawing.

The reference numeral 5 designates the frame of the device, which frameis cylindrical in shape and has on its outer surface a laterally andradially extended arm 6, which is provided in its base with a slot 7which is located lengthwise with respect to the frame. Rotatably mountedin the frame is a body 8 0f metal, which body is cylindrical in shapeand of sufficient size to t snugly yet rotatively in the frame. Thisbody has at one of its ends an external annular flange 9 to co-act withthe adjacent end of the frame.

Fitted in the opening of the body 8 so as to rotate therewith is aiiller 10 which has a Specification of Letters Eatent.

Patented Gct. 25, 1921.

1921. serial no. 487,050.

centrally disposed and preferably tapered opening 11 for the receptionof a correspondingly shaped chuck 12a, or other rotatable shaft orspindle. The iiller 10 is by preference made of felt but any suitablematerial may be substituted therefor.

Secured to that end of the body 8 opposite the flange 9 thereon is acentrally oriiiced disk 12 which has at its periphery on the facethereof adjacent the body 8 a Segmental cam-block 13 which is taperedtoward each of its ends as is clearly shown in F ig. 2 of the drawing.Pivotally secured at oneof its ends to the arm 6 and within the slot 7thereof is a lever 14, the other end of which is provided with a pair ofoutwardly curved resilient clamping members 15, each of whichl is bypreference provided near its free end with a circular opening 16 for therec-eption of the ends of the container for the ingredients of theamalgam or alloy, which container is by preference in the form of acapsule 17 ordinarily used for holding or administering medicines ofvarious kinds.

The lever 1li has outwardly of its pivot an extension 18, the outersurface of which is slightly rounded as at 19 to more eiiiciently co-actwith the cam-block 13 on the disk 12 of the device.

A spring 20 of the compression type is interposed between the outer endof the arm 6 and the lever la as will be readily understood by referenceto Figs. 2 and 8 of the drawings. The ends of the spring 2O may besupported or held in place on the arm 6 and the lever 14C by means ofinwardly extended pins 21, mounted on the adjacent surfaces of saidmembers. The disk 12 is by preference secured to the body 8 by means ofa series of screws 22, inserted through suitable openings in the diskand seated in suitable openings in the adjacent end of the body.

The frame 5 is provided on its outer surface diametrically opposite thearm 6 with a screw-threaded socket 28 for the receptionof one end of thehandle 24, which is employed for manually handling or manipulating themixer.

By grasping the handle 24; with one hand the extension 18 on the lever14 thus causing it to vibrate rapidly and laterally With respect to thedisk, thereby agitating the ingredients contained in the receptacle orcap@ sule 17 and thus thoroughly mixing the saine. Y

Having thus Vfully described my invention, Wha-t l claiin as new anddesire to secure by Letters-Patent is 1l. The combination with acylindrical frame having a laterally and radially eX- tended armprovided with a slot disposed longitudinally with respect to said frame,of a cylindrical body rotatably mounted in said frame and having at oneof its ends anY eX Vternal annular flange to co-actrWith the ad jacentend of thefraine, a centrally orificed filling located in the body forrotation therewith, a disk having a central opening surrounding aportion of said filling and secured to that end oi' the body oppositeits flange, a segmental earn-block on the face of the disk adjacent thebody and a springv pressedflever pivoted at one gofpits ends in Varinand the lever.

the slot of the said arm and having at its other endspaced resilientclamping members for a container.

2. The combination withv a cylindrical frame having a laterally andradially eX- tended arm provided with a slot disposed longitudinallywith respect to said frame, of a centrally oriiiced cylindrical bodyrotatablyniounted in said frame and having at one of its ends anexternal annular flange to co-aet With the adjacent end of thefrarne, adisk having a central opening and secured to thatend of the bodyopposite its flange, a segmental earn block on the face of the diskadjacent the body, avlever pivoted at one oi' its ends in the slot ofsaid arni for movement in a plane With the arln and having a projectionextended into the path of saidA cam block, a pair of spaced `resilientclamping meinbers mounted on the free end ot said v lever, and a springinterposed between said 4 BoHUsLAv srML.

